AN667设计与L6560 /一个过渡模式IC开关催功率因数前置稳压器

AN667设计与L6560 /一个过渡模式IC开关催功率因数前置稳压器

APPLICATION NOTE
DESIGNING A HIGH POWER FACTOR SWITCHING
PREREGULATOR WITH THE L6560/A TRANSITION MODE I.C.
by G. Comandatore and U. Moriconi



Active power factor correction techniques are going to grow in conversion applications. Market inter-
est (legislation to be considered) is also moving towards fairly low (36-150W) conversion power
ranges (lighting, monitor).
This paper describes an "easy to use" 8 Pin Controller that allows the realization of very low cost off-
line Power Factor Correction.


Introduction Switching at a frequency much higher than the